overboosting?

Hiya guys !
After going to the RR day in Manchester at the weekend my car had a boost gauge hooked up for the first time and on each run it was sustaining 1.35 bar and peaking at 1.5 , similar figures to some s3's that were there. Is this too high because i know that i'll be running a smaller turbo than an S3 - Dont want to run the risk of damaging anything so was wondering if it was worth fitting a boost controller so it can be turned down for day to day use.

Google AdSenseGuest Advertisement

Dude, I thought that the ECU had built in overboost protection? If you boost over a certain amount, it kicks you into Soft Limp mode to avoid damage. Therefore, if you're not hitting limp mode, you SHOULD be within safety limits, right? /ubbthreads/images/graemlins/crazy.gif

Jim, if your not hitting limp mode I wouldn't worry to be honest mate. The only reason I can see for you to get an MBC is so that it sustains the boost for longer periods.

Like the set up I had, it was shown on the rollers that I was holding higher boost levels for longer than the other cars. The other bonus is that you can put a cap on the boost limit. Mine was capped at just over 1.4bar, which I am happy with for day to day running.

Could stick it up a little, but I will just get boost spikes (with my current N75 valve) leading to overboost and limp mode.

Parts Request

About Us

Our community has been around for many years and pride ourselves on offering unbiased, critical discussion among people of all different backgrounds. We are working every day to make sure our community is one of the best.